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Fluorine-substituted cobalt phthalocyanine/activated carbon Li/SOCl2 battery catalytic material and preparation method thereof

A catalytic material, activated carbon technology, applied in organic compound/hydride/coordination complex catalysts, chemical instruments and methods, physical/chemical process catalysts, etc., can solve problems such as inability to meet market demands, and achieve short preparation cycles. , The effect of low preparation cost and excellent electrochemical performance

Inactive Publication Date: 2019-05-03
SHAANXI UNIV OF SCI & TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

([5] Xu, Z.; Li, K., Electrochemical Effects of Lithium-Thionyl ChlorideBattery by Central Metal Ions of Phthalocyanines-Tetraacetamide Complexes Journal of The Electrochemical Society 2017, 164, A3628-A3632.) Currently reported phthalocyanine / Graphite-based composite materials are basically prepared by liquid phase, solid phase method and microwave method ([6] Kumar, P.; Kumar, A.; Sreedhar, B.; Sain, B.; Ray, S.S.; Jain, S.L.Cobaltphthalocyanine immobilized ongraphene oxide: An efficient visible-active catalyst for the photoreduction of carbon dioxide. Chem.Eur.J. 2014,20,6154-6161.[7]Li,H.J.;Xu,Z.W.;Li,K.Z.; Hou, X.H.; Cao, G.X.; Zhang, Q.L.; Cao, Z.Y. Modification of multi-walled carbon nanotubes with cobalt phthalocyanine: Effects of the templates on the assemblies. J. Mater. Chem. 2011, 21, 1181-1186. [8 ] Gao, Y.; Chen, L.; Quan, M.; Zhang, G.; Zheng, Y.; Zhao, J., A series of new Phthalocyanine derivatives with large conjugated system as catalysts for the Li / SOCl 2 battery.Journal of ElectroanalyticalChemistry 2017,808.) There are certain deficiencies in the prepared materials, which cannot meet the needs of the market

Method used

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  • Fluorine-substituted cobalt phthalocyanine/activated carbon Li/SOCl2 battery catalytic material and preparation method thereof
  • Fluorine-substituted cobalt phthalocyanine/activated carbon Li/SOCl2 battery catalytic material and preparation method thereof
  • Fluorine-substituted cobalt phthalocyanine/activated carbon Li/SOCl2 battery catalytic material and preparation method thereof

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Experimental program
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Effect test

Embodiment 1

[0024] 1) Take 0.619g of 4-fluorophthalic anhydride and 0.08g of which has a surface area of ​​1200m 2 / g of pitch coke activated carbon was mixed in a glass mortar;

[0025] 2) Take 0.6g of urea, 0.08g of ammonium molybdate and 0.4g of cobalt chloride hexahydrate and add them to the above-mentioned glass mortar and grind them thoroughly, then put them into a crucible and place them in a muffle furnace at 10°C min -1 The heating rate was raised from room temperature to 80°C and then kept for 0.2h; then at 5°C min -1 The heating rate is increased to 200 ° C, and the temperature is kept for 1 hour for sintering;

[0026] 3) Naturally cool to room temperature, wash the obtained product with ultrapure water for 10 hours, change water and wash 8 times, then use water and ethanol to filter, wash several times, and dry to obtain fluorine-substituted cobalt phthalocyanine / activated carbon Li / SOCl2 battery catalytic material.

Embodiment 2

[0028] 1) Take 0.619g of 4-fluorophthalic anhydride and 0.08g of which has a surface area of ​​1200m 2 / g of pitch coke activated carbon was mixed in a glass mortar;

[0029] 2) Take 0.6g of urea, 0.08g of ammonium molybdate and 0.4g of cobalt chloride hexahydrate and add them to the above-mentioned glass mortar and grind them thoroughly, then put them into a crucible and place them in a muffle furnace at 10°C min -1 The heating rate was raised from room temperature to 80°C and then kept for 0.2h; then at 5°C min -1 The heating rate is raised to 200 ° C, and the temperature is kept for 3 hours for sintering;

[0030] 3) Naturally cool to room temperature, wash the obtained product with ultrapure water for 10 hours, change water and wash 8 times, then use water and ethanol to filter, wash several times, and dry to obtain fluorine-substituted cobalt phthalocyanine / activated carbon Li / SOCl2 battery catalytic material.

Embodiment 3

[0032] 1) Take 0.819g of 4-fluorophthalic anhydride and 0.1g with a surface area of ​​1200m 2 / g of pitch coke activated carbon was mixed in a glass mortar;

[0033] 2) Take 1.2g of urea, 0.12g of ammonium molybdate and 0.606g of cobalt chloride hexahydrate and add them into the above-mentioned glass mortar and grind them thoroughly, then put them into a crucible and place them in a muffle furnace at 10°C min -1 The heating rate is raised from room temperature to 150°C and then kept for 0.5h; then at 10°C min -1 The heating rate is increased to 270 ° C, and the temperature is kept for 2 hours for sintering;

[0034] 3) Naturally cool to room temperature, wash the obtained product with ultrapure water for 24 hours, change the water and wash 10 times, then use water and ethanol to filter, wash several times, and dry to obtain fluorine-substituted cobalt phthalocyanine / activated carbon Li / SOCl2 battery catalytic material.

[0035] Depend on figure 1 It can be seen that at 75...

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Abstract

The invention discloses a fluorine-substituted cobalt phthalocyanine / activated carbon Li / SOCl2 battery catalytic material and a preparation method thereof, 4-fluorophthalic anhydride, cobalt chloridehexahydrate, asphalt coke activated carbon and urea as raw materials and ammonium molybdate as a catalyst are uniformly ground in a glass mortar, and then put into a muffle furnace for solid-phase sintering to obtain the fluorine-substituted cobalt phthalocyanine composite activated carbon catalytic material. The method has the advantages of simple preparation process, low cost, easy control of preparation conditions, short synthesis period, uniform composition and the like. The fluorine-substituted cobalt phthalocyanine composite material prepared by the method can form conductive networks communicated with each other, meanwhile, controllable ordered pores are provided as a micro reaction space, a reaction active site can be at as a central ion, and also can be at a benzene ring connectedwith a fluorine substituent group, the specific surface area of the asphalt coke activated carbon is high, and the pore structure and the microcrystalline structure have certain catalytic performance, so that the discharge time of an electrode material is prolonged, and the interface resistance is effectively reduced.

Description

technical field [0001] The invention relates to the technical field of lithium primary batteries, and mainly relates to a fluorine-substituted cobalt phthalocyanine / activated carbon Li / SOCl2 battery catalytic material and a preparation method thereof. Background technique [0002] Under the dual impetus of market demand and policy guidance, energy issues have become more and more important. According to related reports, 90% of the world's energy consumption comes from fossil fuels and some non-renewable resources. Fossil fuels produce SO during combustion 2 , CO 2 and other gases harmful to the environment and humans. At present, the search for green and pollution-free new high-energy chemical power sources has become a hot spot that countries all over the world are competing to develop. Lithium thionyl chloride battery is one of the batteries with the highest specific energy in the actual application of lithium primary batteries at present. It has a high discharge volta...

Claims

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Application Information

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IPC IPC(8): B01J31/22B01J35/00B01J35/02B01J35/04H01M6/14
Inventor 许占位关伟伟李康孔硌曹丽云黄剑锋沈学涛杨军
Owner SHAANXI UNIV OF SCI & TECH
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